Adjustable bearing



Aug. 21. 1928.A Y 1,681,204

- J. w. wHrrl-:LocK ET AL ADJUSTABLE BEARING Filed July 22, 1925 INVENTORS:

7 ATTORNEY.

i in provide a bearing adapted` forcontinuous A Patented-ihm.y 192,8.3 :f di p y N UNITED f STATES.: PATENT OFFICE# JAMES' w. wHrrEioci: inmunes w. cesa, or LA HAiRA, cALiFoRNIA.

y p AAramisTania: niiRING. y lf Application -iueiigiuiy 22 19425. seriai no. 45,237.

It is the object of this invention to pro` vide-a Wrist-*pin bearingfor the pitman of `a vwell pumping apparatus, which maybe 1 quickly and accuratelyadjusted and locked 5 in desired position, and `which Vprovidesan y extremely simple ibut durable structure ing screw '14.`- The upper end ofk the` screw adapted `for"mountingin the usual befiringgl forms an operating nut 15, which terminates ff slot provided in a Pitman.. in a bearing abutment 16 journaled in-a co- It is a further object of the invention. to operating bearing recessV 117 provided in an 65 end plate 18 which is fixed against theupper V end'of slot 1 by suitable fasteningmeans119.

An-ei'id thrust is thus provided forscrew. A 14 so ithatfwhen nut 15wis engaged by a suitable `wrench 'for turning. the screw; the block `9` and the half-bearing 8 which `V is i fixedthereto `will be longitudinally adjusted in-slot 1 relative to' the fixedhalf-bearingff' 6.7' `The parts are preferably locked in adjusted position by a nut 20threaded on screw 14L and adapted to be'screwed down against plate 13 to hold the screw against turningf A' lubricating bore 2l'extends ,through the f, restricted portion 11 ofhalf-bearing 8 and g opens" through the bearing surface atV one 80 end, .and at its opposite end communicatesl with the reservoir formed in hollow block` `9 above the web 12. The reservoir in the hollow block is filled with a suitable lubrioantsuch as oil soaked waste, Vand lubricating .bore 21 is preferably in non-alinement with screw 14 as shown iii Fig. 3, so thatV the screw will not obstruct the flow of lubricant to the bearing surface. The 'bearing surface is thus supplied with lubricant from 90 i thev oilwreservoir, and at the same time the end of the screw threaded through plate 13 and extending into the oil reservoir is Vsupplied with lubricant from the reservoir in base of the block and resting upontheextensions 1(). Y Y im, i A medialvtransverse plate 13 connects'y -the y Y sidewalls of block 9 at its open top, and 60 this plate isxthreaded to receive an adjustautomatic lubrication thereof,by providing a lubricating reservoirV feeding" directly to the bearing surface. The invention will ybereadily.understood from the following rescriptioii ofthe accompanying drawings, in which: i

Fig. 1 is a side; elevation ofthe* pitman land`operatingconnections of afwell pumping apparatus.

20 Fig. 2 is a front elevation, partly inverticalsection, `ofthe wrist-pin bearing mount-` ed ina pitman. p

Fig. 3 `isa vertical section' on the .line

3-3 of Fig. 2.

Fig. 4 is a transverse section on the line V4r-etofFigx3.

The improved bearing is adapted for mounting Vin Athe usual 'slot l extending through the pitman 2` of a well pumping 30 apparatus,-the bearing having thefwrist-pin i 3 of the operating fcrankjfl-journaled therein, with the crank` and the retaining washer 5 which is provided on the end of the wrist-. in abutting Yagainst opposite sides -of` the aring for `retaining t e same in the slot.l The bearing comprisesf half-bearing 6 j fixedin the lower end of slot 1 bysuitable fastening means 7 and cooperating half-l V wrist-pin journaled between the coo erating half-bearings.

walls extending. across its op bearing 8 adjustable in the slot with the `The back of thea jiistable` half-bearing is castin a block 9w'hich vforms a reservoir for a lubricant and is slidable `in the slot.

The block 9 is a. hollow structure having closed sides and ends and an open top and bottom, and having extensions 10 of its side en base medially of the block andV terminating `short of one another so as to form a slot extending transversely of the block.

The back of half-bearing 8 which is cast in the open base ofv block 9, forms a restricted p portion 11 extending through the slot and a web 12 at the upper end ofl said y restricted portion Voverlying the entire, open.

'order to insure ease" of adjustment of the screw through the plate.

We claim:

1. A bearing adapted for mounting inY Va member having a4 slot extending therethrough, comprising cooperating half-bearings, one of said half-bearings -bein mounted in the end-of said slot, aliollow block slidable in the slot 'and open at its top'and bottom, tially closing tliebottom thereof, the other portion of the hollow block and resting upon said webs to prevent displacement ofsaid .other half-bearing from said block and close the open lower end of the block, said halfbearinghaving a bore opening therethrough to the bearing surface and eominunicating said block having webs parl "half-bearing havingl a back cast in the lower with the upper portion of the hollow block which forms :i reservoir, and means Vfor ucljusting the block und half-bearing which is mounted' thereon rclntiife to the other halfbcuring. j

Q. The combination of :i split bearing, a hollow block open at its bottom und hintingwebs projecting from itsl side walls, und :i backingr on one sect/ion of the Split beu-ring adapted for reception in the open'bottoin of the hollow block with the projecting webs overlying the backing! so es to prevent displacement ot the section' o the split bem`- ing: on which the buckingr is formed and close the bottonr of the hollow block whereby the hollow bloclc forms u reservoir, the backing' andi the section of the Split bea-ring upon wliieh it is formed having n bore opening therethrough trom the rceer'voir to the bearing surface of the split bearing.

3; The combination ot fr eplitl bearing', :i hollow block open :it its bottom and having webs projectingfroi'n its side wells, zrbacliA ing on one sect-ion ot' the split hearing adapted for reception in theopen bottom of the hollow blocl'c with the projecting webs overlying the bucking so es to prevent 'displacement of the section of the split bearing: on which the backing formed :unl close the bottoni of the hollow block whereby the hollow block formsf a reservointhe buckingend the Section of the split bearing upon whiclrit is formed havingy :l bore opening; therethrough from the reservoir to the beuring surface of the split bcnrinfr, nnfl means for adjusting the hollow block :nul thc heuring section which is mounted thereon relutive to the other section of the split bearing.

l. The combination oi u split hearing. n hollow blockv open at its bottom nml hnvn,"r webs projecting from its fiile walls. :i hurl:- ing on one section ol the split bearing.' ntluptetl tor reception in the open bottoni ot" the hollow block with the projcwtinpr webs overlying the backing so :is to prevent displacement of the section of the split livin ing on which the lmckngis :toi-nml :unl close the bottom of the l hollow block whereby the hollow block forms :i reservoir, the backing' and the section ol the split bearing;r upon which it is forinczl hnrinf n bore opening therethrough from the rescivoir to the bcfiring surface of the split heuringr, und :in adjusting screw enguging' tho hollow block for :irljustling the block :unl the bearing section which is inonntctl thereon relative to the other section ol' the split. bearing.

In testimony wl'iereof we here utlixeil our Signatures to this;` speeiticntion. j

.lAll'lES lV. VHI'IELOCK. JAMES lV. CASE. 

